5-inch 409 stainless steel constant-diameter DPF-back system. Patented negative backpressure SideKick tip helps lower exhaust exit temps by 15%. Improves flow and cuts backpressure by 89% from the DPF and 9% at the turbine inlet, allowing the engine to produce more horsepower. Includes Huge Polished-Chrome or Cerakote Black Patented SideKick tip. The 5-inch Monster Exhaust designed specifically for the 2011-2016 GM 6.6L Duramax LML 2500/3500 HD pickup trucks. The DPF-back exhaust system features constant-diameter 5-inch mandrel-bent Aluminized Steel tubing and a massive patented tip which virtually eliminates backpressure after the DPF and prevents trailer meltdown.Key Features:-5" 409 stainless steel constant-diameter DPF-back exhaust system.-15% reduction in exhaust temperature 2 feet behind the tip during regen-Huge patented 6.5" x 7.5" ob-round slash-cut exhaust tip-Chrome-plated stainless tip will not turn brown with heat-89% less backpressure at the DPF than stock exhaust-9% less backpressure at the exhaust turbine-Ob-Round Exhaust Tip Patent No. 5,581,111 S1-Fits trucks with aftermarket airbags-see fitment notes section above-1-Year Limited Warranty

This Part Fits:

Year	Make	Model	Submodel
2015-2016	Chevrolet	Silverado 2500 HD	High Country
2011-2016	Chevrolet	Silverado 2500 HD	LT
2011-2016	Chevrolet	Silverado 2500 HD	LTZ
2011-2016	Chevrolet	Silverado 2500 HD	WT
2015	Chevrolet	Silverado 3500 HD	High Country
2011-2015	Chevrolet	Silverado 3500 HD	LT
2011-2015	Chevrolet	Silverado 3500 HD	LTZ
2011-2015	Chevrolet	Silverado 3500 HD	WT
2015-2016	GMC	Sierra 2500 HD	Base
2011-2016	GMC	Sierra 2500 HD	Denali
2011-2016	GMC	Sierra 2500 HD	SLE
2011-2016	GMC	Sierra 2500 HD	SLT
2011-2014	GMC	Sierra 2500 HD	WT
2015	GMC	Sierra 3500 HD	Base
2011-2015	GMC	Sierra 3500 HD	Denali
2011-2015	GMC	Sierra 3500 HD	SLE
2011-2015	GMC	Sierra 3500 HD	SLT
2011-2014	GMC	Sierra 3500 HD	WT